WO2023246428A1 - Joint de réduction de bruit et relais - Google Patents

Joint de réduction de bruit et relais Download PDF

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Publication number
WO2023246428A1
WO2023246428A1 PCT/CN2023/096650 CN2023096650W WO2023246428A1 WO 2023246428 A1 WO2023246428 A1 WO 2023246428A1 CN 2023096650 W CN2023096650 W CN 2023096650W WO 2023246428 A1 WO2023246428 A1 WO 2023246428A1
Authority
WO
WIPO (PCT)
Prior art keywords
noise reduction
reduction gasket
rod assembly
bearing
connecting plate
Prior art date
Application number
PCT/CN2023/096650
Other languages
English (en)
Chinese (zh)
Other versions
WO2023246428A9 (fr
Inventor
代文广
张青年
王萌
罗诚灿
陈松生
Original Assignee
厦门宏发电力电器有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 厦门宏发电力电器有限公司 filed Critical 厦门宏发电力电器有限公司
Publication of WO2023246428A1 publication Critical patent/WO2023246428A1/fr
Publication of WO2023246428A9 publication Critical patent/WO2023246428A9/fr

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/16—Magnetic circuit arrangements
    • H01H50/18—Movable parts of magnetic circuits, e.g. armature
    • H01H50/30—Mechanical arrangements for preventing or damping vibration or shock, e.g. by balancing of armature
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/16—Magnetic circuit arrangements
    • H01H50/36—Stationary parts of magnetic circuit, e.g. yoke

Definitions

  • the invention relates to a noise reduction gasket and a relay.
  • a relay is an electronic control device commonly used in automatic control circuits.
  • the relay includes a control system and a controlled system.
  • the control system serves as the input circuit and the controlled system serves as the output circuit. In fact, it uses a smaller current to control a larger current to achieve the function of "automatic switching".
  • high-voltage DC relay is mainly used in electric vehicles to control the switching of battery charging and discharging.
  • the contacts and iron core of the relay are in a fully closed state before disconnection.
  • the large spring is compressed over travel to provide contact pressure, and the small spring is also compressed to provide contact breaking force.
  • both springs are compressed, storing the potential energy of the springs. If the driving end of the relay coil receives a power-off command, the energy stored in the spring will be converted into the kinetic energy of the entire moving assembly, thereby realizing the separation of the relay contacts. The entire movement will not terminate until the driving rod assembly hits the yoke iron plate.
  • the invention provides a noise reduction gasket and a relay that reduce the generation of noise, inhibit the spread of noise, and improve the noise reduction effect.
  • a noise reduction gasket is provided, the noise reduction gasket is located between the drive rod assembly and the yoke plate, the noise reduction gasket includes:
  • a bearing part is provided on the yoke plate
  • a support part connected to the bearing part, and the drive rod assembly is configured to penetrate the support part along the first direction and selectively abut against the support part;
  • the flexible deformation part is provided between the load-bearing part and the support part, for the support part Buffering and noise reduction between the bearing part and the bearing part;
  • the noise reduction gasket is at least partially made of rigid material.
  • the noise reduction gasket further includes an overhanging portion, and the overhanging portion is disposed between the bearing part and the supporting part along the first direction.
  • the bottom surface of the support part is higher than the bottom surface of the load-bearing part, so that the suspended part is formed between the support part and the load-bearing part.
  • the support part, the flexible deformation part and the bearing part are nested with each other.
  • the projection of the support portion on the yoke plate is disposed within the projection of the bearing portion on the yoke plate; or,
  • the projection of the bearing portion on the yoke plate is disposed within the projection of the supporting portion on the yoke plate.
  • the flexible deformation part includes a connecting plate, the connecting plate is located between the bearing part and the supporting part, and the connecting plate is connected to the bearing part and the supporting part respectively.
  • the connecting plate is at least partially provided with a corrugated structure, and the corrugated structure is used to absorb and cut off noise transmitted from the supporting part to the bearing part.
  • the connecting plate is provided with at least one of grooves and protrusions to form the corrugated structure.
  • the thickness of the connecting plate is at least partially different along the first direction.
  • the thickness of the connecting plate is smaller than the thickness of the supporting part, and the thickness of the connecting plate is smaller than the thickness of the bearing part.
  • the flexible deformation part further includes a hollow part located between the bearing part and the supporting part for blocking transmission from the supporting part to the bearing part. noise.
  • a plurality of connecting plates are spaced between the bearing part and the supporting part, and the hollow part is formed between two adjacent connecting plates.
  • the width of the connecting plate along the circumferential direction of the first direction gradually decreases from the direction from the carrying part to the supporting part;
  • the width of the connecting plate in the circumferential direction of the first direction gradually increases from the bearing part to the supporting part.
  • the connecting plate is at least partially provided with a corrugated structure, and the corrugated structure is used to absorb and cut off noise transmitted from the supporting part to the bearing part;
  • the connecting plate is provided with the hollow portion.
  • the corrugated structure and the hollow portion are arranged around the support portion along the circumferential direction of the first direction; or,
  • the hollow part and the corrugated structure are spaced apart.
  • the connecting plate is provided with a through hole to form the hollow portion.
  • the noise reduction gasket is provided with a notch along a radial direction of the drive rod assembly.
  • the cross section of the notch is any one of C-shaped, U-shaped, and V-shaped.
  • any one of the support part and the load-bearing part is provided with a through hole, and the through hole is used for the penetration of the driving rod assembly;
  • the notch is connected to the through hole.
  • the cross section of the support part is any one of circular, square and polygonal; and/or,
  • the cross-section of the bearing part is any one of circular, square and polygonal.
  • a relay including a static contact lead-out, a moving reed, a driving rod assembly, a yoke plate and the above-mentioned noise reduction gasket, the noise reduction gasket is arranged on the drive Between the rod assembly and the yoke plate, the driving rod assembly is passed through the yoke plate and is configured to drive the moving reed to move in a direction closer to or away from the stationary contact lead-out end, so that the The moving reed selectively contacts and separates from the lead-out end of the static contact.
  • the bearing portion of the noise reduction gasket is fixedly arranged relative to the yoke plate; or,
  • the support portion of the noise reduction gasket is fixedly arranged relative to the drive rod assembly; or,
  • the noise reduction gasket is movably arranged between the bearing portion and the yoke plate, and the noise reduction gasket is movably arranged between the support portion and the drive rod assembly.
  • one of the bearing portion of the noise reduction gasket and the yoke plate is provided with a positioning post, and the other is provided with a positioning hole corresponding to the positioning post, and the positioning post passes through located in the positioning hole.
  • the noise reduction gasket provided by the embodiment of the present invention is at least partially made of rigid materials, so that the noise reduction gasket itself has relatively high strength, is not prone to large deformation, has good fatigue resistance, and is not prone to Foreign objects, long service life.
  • the bearing part is arranged on the yoke plate.
  • the bearing part is equivalent to the lower supporting surface and plays the role of overall support, providing a support position for the noise reduction gasket to be placed on the yoke plate.
  • the drive rod assembly is configured to pass through the support part along the first direction.
  • the support part provides an escape space for the movement of the drive rod assembly.
  • the drive rod assembly selectively abuts the support part.
  • the support part is relative to the upper support surface for driving.
  • the rod assembly provides a stressed support location.
  • the flexible deformation part is disposed between the load-bearing part and the support part.
  • the flexible deformation part serves to connect the load-bearing part and the support part.
  • the flexible deformation part can produce flexible deformation, which affects the driving rod assembly.
  • the impact acts as a buffer.
  • the noise transmitted from the support part to the bearing part can be muffled to a certain extent, ensuring a good noise reduction effect.
  • it is equivalent to extending the noise propagation path, thereby increasing energy loss and reducing the noise transmitted to the yoke plate.
  • the driving rod assembly is passed through the yoke plate and is configured to drive the moving reed to move in a direction closer to or away from the static contact lead-out, so that the moving reed can selectively contact the static contact lead-out. and separation.
  • moving reed When in contact with the static contact at the bottom of the static contact terminal, current flows in from the static contact terminal and flows out from the static contact terminal after passing through the moving reed, thereby achieving connected loads.
  • a noise reduction gasket is provided between the drive rod assembly and the yoke iron plate.
  • the noise reduction gasket isolates the drive rod assembly and the yoke iron plate.
  • the drive rod assembly does not directly contact the yoke iron plate, but directly contacts the noise reduction gasket, thereby reducing noise.
  • the gasket plays the role of buffering and noise reduction, achieving the effect of reducing the generation of noise and inhibiting the spread of noise.
  • Figure 1 is a schematic diagram of a noise reduction gasket located between a drive rod assembly and a yoke plate according to an exemplary embodiment
  • Figure 2 is a second schematic view of a noise reduction gasket located between the drive rod assembly and the yoke plate according to an exemplary embodiment
  • Figure 3 is a schematic structural diagram of a noise reduction gasket according to the first exemplary embodiment
  • Figure 4 is a second structural schematic diagram of a noise reduction gasket according to the first exemplary embodiment
  • Figure 5 is a schematic structural diagram three of a noise reduction gasket according to the first exemplary embodiment
  • Figure 6 is a schematic structural diagram of a noise reduction gasket according to a second exemplary embodiment
  • Figure 7 is a schematic structural diagram 2 of a noise reduction gasket according to a second exemplary embodiment
  • Figure 8 is a structural schematic view three of a noise reduction gasket according to a second exemplary embodiment
  • Figure 9 is a schematic structural diagram of a noise reduction gasket according to a third exemplary embodiment.
  • Figure 10 is a schematic structural diagram 2 of a noise reduction gasket according to the third exemplary embodiment
  • Figure 11 is a structural schematic diagram three of a noise reduction gasket according to a third exemplary embodiment
  • Figure 12 is a schematic structural diagram of a noise reduction gasket according to the fourth exemplary embodiment.
  • Figure 13 is a schematic structural diagram 2 of a noise reduction gasket according to the fourth exemplary embodiment.
  • Figure 14 is a structural schematic diagram three of a noise reduction gasket according to the fourth exemplary embodiment.
  • Figure 15 is a schematic structural diagram of a noise reduction gasket according to the fifth exemplary embodiment.
  • Figure 16 is a schematic structural diagram 2 of a noise reduction gasket according to the fifth exemplary embodiment
  • Figure 17 is a structural schematic diagram three of a noise reduction gasket according to the fifth exemplary embodiment.
  • Figure 18 is a schematic structural diagram of a noise reduction gasket according to the sixth exemplary embodiment.
  • Figure 19 is a schematic structural diagram 2 of a noise reduction gasket according to the sixth exemplary embodiment.
  • Figure 20 is a structural schematic diagram three of a noise reduction gasket according to the sixth exemplary embodiment.
  • Figure 21 is a schematic structural diagram of a noise reduction gasket according to the seventh exemplary embodiment.
  • Figure 22 is a second structural schematic diagram of a noise reduction gasket according to the seventh exemplary embodiment.
  • Figure 23 is a structural schematic diagram three of a noise reduction gasket according to the seventh exemplary embodiment.
  • Figure 24 is a schematic structural diagram of a noise reduction gasket according to the eighth exemplary embodiment.
  • Figure 25 is a schematic structural diagram 2 of a noise reduction gasket according to the eighth exemplary embodiment.
  • Figure 26 is a structural schematic diagram three of a noise reduction gasket according to the eighth exemplary embodiment.
  • Figure 27 is a schematic structural diagram of a noise reduction gasket according to the ninth exemplary embodiment.
  • Figure 28 is a schematic structural diagram 2 of a noise reduction gasket according to the ninth exemplary embodiment.
  • Figure 29 is a structural schematic diagram three of a noise reduction gasket according to the ninth exemplary embodiment.
  • Figure 30 is a schematic structural diagram of a noise reduction gasket according to the tenth exemplary embodiment
  • Figure 31 is a schematic structural diagram 2 of a noise reduction gasket according to the tenth exemplary embodiment
  • Figure 32 is a structural schematic diagram three of a noise reduction gasket according to the tenth exemplary embodiment
  • Figure 33 is an exploded schematic diagram of a relay according to eleven exemplary embodiments.
  • Figure 34 is a cross-sectional view of a relay shown according to eleven exemplary embodiments.
  • Figure 35 is an exploded schematic diagram of a relay according to twelve exemplary embodiments.
  • Figure 36 is a cross-sectional view of a relay shown according to twelve exemplary embodiments.
  • Figure 37 is a schematic diagram 1 of the cooperation between the noise reduction gasket and the yoke plate in a relay according to the twelfth exemplary embodiment
  • Figure 38 is a second schematic diagram of the cooperation between the noise reduction gasket and the yoke plate in a relay according to the twelfth exemplary embodiment
  • Figure 39 is a schematic diagram three of the cooperation between the noise reduction gasket and the yoke plate in a relay according to the twelfth exemplary embodiment
  • Figure 40 is a schematic diagram 1 of the cooperation between the noise reduction gasket and the yoke plate in a relay according to the thirteenth exemplary embodiment
  • Figure 41 is a second schematic view of the cooperation between the noise reduction gasket and the yoke plate in a relay according to the thirteenth exemplary embodiment
  • Figure 42 is a third schematic view of the cooperation between the noise reduction gasket and the yoke plate in a relay according to the thirteenth exemplary embodiment.
  • Example embodiments will now be described more fully with reference to the accompanying drawings.
  • Example embodiments may, however, be embodied in various forms and should not be construed as limited to the embodiments set forth herein.
  • relative terms such as “upper” and “lower” are used in this specification to describe the relative relationship of one component of an icon to another component, these terms are used in this specification only for convenience. For example, according to the drawings, Orientation of the example described. It will be understood that if the icon device were turned upside down, components described as “on top” would become components as “on bottom”. Other relative terms, such as “top”, “bottom”, etc. also have similar meanings.
  • a structure When a structure is "on" another structure, it may mean that the structure is integrally formed on the other structure, or that the structure is “directly” placed on the other structure, or that the structure is “indirectly” placed on the other structure through another structure. on other structures.
  • this embodiment provides a noise reduction gasket 100.
  • the noise reduction gasket 100 is located between the drive rod assembly 200 and the yoke plate 300.
  • the noise reduction gasket 100 plays a role in isolating the drive rod assembly 200 and the yoke iron plate 300, thereby preventing the drive rod assembly 200 from being separated from the yoke iron plate. 300 are in direct contact, thus buffering the impact of the drive rod assembly 200 .
  • the noise reduction gasket 100 is made of a soft material such as rubber, noise reduction and buffering can be achieved by utilizing its own deformation, but since the relay needs to be switched on and off frequently, the fatigue resistance of the soft material such as rubber is relatively high. , prone to failure, and will produce debris and other foreign matter, thus affecting performance.
  • the noise reduction gasket 100 provided by the embodiment of the present invention includes a bearing part 1, a support part 2 and a flexible deformation part 3.
  • the bearing part 1 is provided on the yoke plate 300, supporting The supporting part 2 is connected to the supporting part 1, and the supporting part 2 is located above the supporting part 1 along the first direction.
  • the driving rod assembly 200 is configured to pass through the support part 2 along the first direction and selectively contact the support part 2; the flexible deformation part 3 is provided between the bearing part 1 and the support part 2 for the support part 2 and the bearing part 2. Buffering and noise reduction between parts 1; wherein, the noise reduction gasket 100 is at least partially made of rigid material.
  • the noise reduction gasket 100 provided in this embodiment is made of at least part of a rigid material, so that the noise reduction gasket 100 has relatively high strength, is not prone to large deformation, and has good fatigue resistance. It is not easy to produce foreign matter and has a long service life.
  • the bearing portion 1 By disposing the bearing portion 1 on the yoke plate 300 , the bearing portion 1 is equivalent to the lower supporting surface, plays an overall supporting role, and provides a supporting position for the noise reduction gasket 100 to be placed on the yoke plate 300 .
  • the drive rod assembly 200 is configured to penetrate the support part 2 along the first direction, and the support part 2 provides an escape space for the movement of the drive rod assembly 200, By the drive rod assembly 200 selectively contacting the support portion 2, the support portion 2 provides a force-bearing support position for the drive rod assembly 200 relative to the upper support surface.
  • the existing driving rod assembly 200 When the existing driving rod assembly 200 is released, it directly hits the yoke plate 300.
  • the driving rod assembly 200 is used to hit the supporting part 2, and the bearing part 1 contacts the yoke plate 300 to realize the impact point transfer.
  • the flexible deformation part 3 is provided between the bearing part 1 and the yoke plate 300. Between the support parts 2, the flexible deformation part 3 serves as an intermediate connection between the load-bearing part 1 and the support part 2.
  • the flexible deformation part 3 can produce flexible deformation and impact the drive rod assembly 200. Act as a buffer.
  • the flexible deformation part 3 it is equivalent to increasing the noise propagation path, which is used to increase energy loss and reduce the noise transmitted to the yoke plate 300.
  • rigid materials specifically refer to elastic fatigue-resistant materials such as metal stainless steel and beryllium copper. Specifically, they can be metals such as aluminum, copper, carbon fiber, or hard plastics. This embodiment does not specifically limit the type of rigid material and can be adjusted according to actual production needs. As long as the rubber cushion is not highly deformed and has greater structural strength and rigidity, it is within the scope of protection of this embodiment. .
  • the noise reduction gasket 100 is at least partially made of rigid material, on the basis that the noise reduction gasket 100 is rigid, buffering and noise reduction are achieved by providing the flexible deformation portion 3.
  • the flexibility The prerequisite for the deformation part 3 to work is that it is rigid in nature, and then it is flexible to eliminate noise and buffer.
  • the first direction specifically refers to the moving direction of the driving rod assembly 200, which may be a vertical direction.
  • any one of the supporting part 2 and the carrying part 1 is provided with a through hole 21 , and the through hole 21 is used for the penetration of the driving rod assembly 200 .
  • the through hole 21 provides an escape space for the driving rod assembly 200 to move in the first direction, so that the driving rod assembly 200 can move freely, ensuring the flexibility of the relay switching on and off.
  • the perforation 21 may be a closed hole structure such as a round hole to prevent the driving rod assembly 200 from being detached from the perforation 21 .
  • the noise reduction gasket 100 further includes an suspended portion 4 , which is disposed between the bearing portion 1 and the supporting portion 2 along the first direction.
  • the supporting portion 2 By disposing the suspended portion 4 between the bearing portion 1 and the supporting portion 2 , that is, the supporting portion 2 has a certain suspension space relative to the bearing portion 1 , when the driving rod assembly 200 impacts the supporting portion 2 , the supporting portion 2 will be affected by the impact. It will move slightly downward along the first direction to a certain extent, and the suspended portion 4 provides a moving space for the movement of the support portion 2, thereby buffering the impact of the drive rod assembly 200.
  • the suspended portion 4 remains suspended after the relay release action is completed and the collision is buffered, that is, the suspended portion 4 truly activates the buffering function and does not directly transmit the impact to the yoke plate 300 .
  • the bottom surface of the supporting part 2 is higher than the bottom surface of the carrying part 1 , so that an suspended part 4 is formed between the supporting part 2 and the carrying part 1 .
  • the thickness of the blank material specifically refers to the thickness of the above-mentioned rigid material.
  • the bottom surface of the supporting part 2 is higher than the bottom surface of the supporting part 1 , that is, the supporting part 2 is not simply stacked on the supporting part 1 , and the supporting part 1 and the supporting part 2 are not on the same plane.
  • the height of the top surface of the support part 2 relative to the yoke plate 300 is greater than the material thickness of the blank of the noise reduction gasket 100 .
  • the driving rod assembly 200 when the driving rod assembly 200 generates an impact force on the support part 2, since the support part 2 has a certain degree of suspension relative to the load-bearing part 1, the support part 2 and the load-bearing part 1 do not directly contact each other over a large area, and the impact force After supporting the impact support part 2, the suspended part 4 is used to achieve buffering, and a large area is not transferred to the yoke plate 300 through the bearing part 1, thereby improving the noise reduction and buffering effects.
  • the bottom surface of the support part 2 can be higher than the top surface of the bearing part 1 , or the bottom surface of the support part 2 can be lower than the top surface of the bearing part 1 , as long as the bottom surface of the support part 2 can be suspended in the air.
  • the bottom surface of the support part 2 is flush with the top surface of the load-bearing part 1, it is necessary that the bottom surface of the support part 2 and the load-bearing part 1 cannot be in direct contact, and the two need to be staggered by a certain distance to provide the flexible deformation part 3 with the required of accommodation space.
  • the projection of the bearing part 1 on the yoke plate 300 and the projection of the supporting part 2 on the yoke plate 300 do not overlap.
  • the supporting part 2 and the supporting part 1 have a non-overlapping structure, that is, the external shapes of the supporting part 2 and the supporting part 1 What is enclosed is not a cylindrical structure, but the bearing part 1 and the supporting part 2 are staggered from each other to provide an accommodation space for the flexible deformation part 3 between the bearing part 1 and the supporting part 2 .
  • the support part 2, the flexible deformation part 3 and the bearing part 1 are nested with each other.
  • the supporting part 2, the bearing part 1 and the flexible deformation part 3 are all similar in shape to an annular structure.
  • the support part 2, the bearing part 1 and the flexible deformation part 3 are all arranged around the driving rod assembly 200.
  • the driving rod The impact force generated after the component 200 impacts the support part 2 will be evenly dispersed around the support part 2 and then evenly dispersed around the bearing part 1 through the flexible deformation part 3 to ensure uniform dispersion of noise transmission.
  • the flexible deformation part 3 includes a connecting plate 31.
  • the connecting plate 31 is located between the bearing part 1 and the supporting part 2.
  • the connecting plate 31 is connected to the bearing part 1 and the supporting part respectively. 2.
  • the connecting plate 31 serves as an intermediate connection between the bearing part 1 and the supporting part 2, so that the entire noise reduction gasket 100 has an integral structure and avoids the 1 and support part 2 are split structures and need to be positioned and installed separately.
  • the connecting plate 31 since the existing drive rod assembly 200 directly hits the yoke plate 300 when partially released, the connecting plate 31 is used to act as a transition zone between the load-bearing part 1 and the support part 2 to avoid direct transmission of noise from the support part 2 to the load-bearing part 1 Then it is transmitted to the yoke plate 300, which is equivalent to increasing the path of noise propagation and playing a role in reducing noise transmission.
  • the connecting plate 31 is at least partially provided with a corrugated structure 32, which is used to absorb and hinder the noise transmitted from the supporting part 2 to the carrying part 1, and to affect the driving rod.
  • the corrugated structure 32 is at least partially provided on the connecting plate 31 , so that the surface of the connecting plate 31 forms a wrinkle-like structure.
  • an impact force is generated, and part of the kinetic energy generated by the impact force is converted into the oscillation of the corrugated structure 32 It can reduce this part of energy and directly convert it into noise, thereby achieving the function of producing less noise.
  • the sound propagation needs to be filtered by the corrugated structure 32 before being transmitted to the yoke plate 300 through the bearing part 1, and the energy is further reduced, thereby slowing down the propagation of noise.
  • the connecting plate 31 is provided with at least one of grooves and protrusions to form a corrugated structure 32 .
  • the groove walls or protruding side walls of the groove are equivalent to increasing the noise propagation path, and the connection or protrusion between two adjacent groove walls in the groove is equivalent to increasing the noise propagation path.
  • the connection between two adjacent side walls plays a role in blocking noise and filtering noise. It can be understood that grooves and protrusions can be provided on the connecting plate 31 at the same time, and the number of the protrusions and grooves is not limited to one, so that the surface of the connecting plate 31 forms a wavy, zigzag or square wave structure to achieve the desired effect. Improve noise release and transmission.
  • the thickness of the connecting plate 31 is smaller than the thickness of the supporting part 2 , and the thickness of the connecting plate 31 is smaller than the thickness of the bearing part 1 .
  • the thicknesses of the connecting plate 31, the supporting part 2 and the carrying part 1 are not exactly the same.
  • the connecting plate 31 has the effect of local thinning, which is equivalent to noise reduction.
  • the gasket 100 has a "dumbbell-shaped" structure with thick ends and a thin middle, which improves the flexible deformation effect of the flexible connection and further reduces sound transmission. It can be understood that the thickness of the connecting plate 31 is thinned in a local area, which is used to absorb and cut off the noise transmitted from the supporting part 2 to the bearing part 1 and to buffer the impact on the driving rod assembly 200 .
  • the thickness of the connecting plate 31 along the first direction gradually decreases from the bearing part 1 to the supporting part 2; or, from the direction from the bearing part 1 to the supporting part 2, the thickness of the connecting plate 31 gradually decreases along the first direction. The thickness gradually increases.
  • the connecting plate 31 itself is not a constant cross-section structure, and the thickness of the connecting plate 31 itself is also variable, which increases the deformation amount of the connecting plate 31 and further improves the flexible deformation effect of the flexible connection part to reduce sound transmission. the goal of.
  • the thickness of the connecting plate 31 along the first direction from the bearing part 1 to the supporting part 2 may also remain unchanged.
  • the flexible deformation part 3 also includes a hollow part 33.
  • the hollow part 33 is located between the load-bearing part 1 and the support part 2, and is used to block the transmission from the support part 2 to the load-bearing part. It plays a buffering role in reducing the noise of part 1 and the impact on the drive rod assembly 200.
  • the hollow part 33 plays a role in isolating the supporting part 2 and the supporting part 1 .
  • noise cannot pass through the supporting part 2
  • the hollow portion 33 is transmitted to the bearing portion 1 to achieve a noise blocking effect and inhibit the propagation of sound, thereby reducing the noise transmitted from the support portion 2 to the bearing portion 1 .
  • multiple The connecting plates 31 have a hollow portion 33 formed between two adjacent connecting plates 31 .
  • the connecting plate 31 can be an integral structure (as shown in Figures 6 to 8).
  • the integral structure of the connecting plate 31 is specifically an annular structure.
  • the connecting plate 31 can also be a split structure (as shown in Figures 9 to 8).
  • the number of connecting plates 31 of the split structure is multiple, and the multiple connecting plates 31 are arranged around the support part 2 at intervals, that is, there is a certain interval between two adjacent connecting plates 31.
  • the gap is the hollow portion 33 . It can be understood that the noise generated by the driving rod assembly 200 impacting the support part 2 is divided into two parts, one part of which is transmitted to the load-bearing part 1 through the connecting plate 31.
  • the connecting plate 31 serves as an intermediate connection between the support part 2 and the load-bearing part 1. , plays the role of extending the noise propagation path, and the other part blocks the propagation path through the hollow portion 33 and plays the role of suppressing the noise propagation. Under the combined effect of these two parts, the purpose of reducing noise is achieved.
  • the width of the connecting plate 31 along the circumferential direction of the first direction gradually decreases from the bearing part 1 to the supporting part 2 ; or, from the bearing part 1 to the supporting part 2 In the direction of the portion 2, the width of the connecting plate 31 along the circumferential direction of the first direction gradually increases.
  • the width of the connecting plate 31 may not be of equal width structure, so that the deformation amount of the connecting plate 31 at different radial positions relative to the driving rod assembly 200 is different, which is beneficial to reducing stress concentration and improving the efficiency of the connecting plate 31 .
  • the fatigue life of the noise reduction gasket 100 is also improved.
  • the deformation of the flexible deformation part 3 is further improved. After the support part 2 is impacted by the drive rod assembly 200, the flexible deformation part 3 is used to have a larger deformation amount to improve buffering and noise reduction. Effect.
  • the width of the connecting plate 31 along the circumferential direction of the first direction may also remain unchanged in the direction from the carrying part 1 to the supporting part 2 .
  • the flexible deformation part 3 is relatively flexible, and the connecting plate 31 of the flexible deformation part 3 is specifically hollowed out, corrugated, and thinned to achieve the function of flexible deformation, all of which are used to reduce sound propagation. It can be understood that the connecting plate 31 of the flexible deformation portion 3 can also be combined or superimposed in at least two of these three ways to further reduce noise transmission.
  • the connecting plate 31 is at least partially provided with a corrugated structure 32.
  • the corrugated structure 32 is used to absorb and hinder the noise transmitted from the supporting part 2 to the bearing part 1.
  • the connecting plate 31 is provided with a hollow part. 33.
  • the connecting plate 31 has a corrugated structure 32 and a hollow portion 33 at the same time, which is equivalent to the flexible deformation portion 3 being a combination of hollow and corrugated structures.
  • the noise generated by the impact of the driving rod assembly 200 on the support part 2 is divided into two parts.
  • One part of the noise is transmitted to the bearing part 1 through the corrugated structure 32 of the connecting plate 31, and part of the kinetic energy is converted into the oscillation energy of the corrugated structure 32, which reduces this part.
  • the energy is directly converted into noise, and the other part of the noise is blocked by the hollow part 33 from the propagation path, thereby inhibiting the propagation of the noise. With the joint action of these two parts, the purpose of reducing the noise is achieved.
  • the central angle of the corrugated structure 32 relative to the driving rod assembly 200 can be smaller than the central angle of the hollow portion 33 relative to the driving rod assembly 200 (as shown in FIGS. 12-14 ), so that the coverage area of the corrugated structure 32 is smaller than the coverage area of the hollow part 33 , in this case the hollow part 33 plays the main role and the corrugated structure 32 plays an auxiliary role; the central angle of the corrugated structure 32 relative to the driving rod assembly 200 can be larger than the hollow part 33 relative to the driving rod assembly 200
  • the central angle of the circle makes the coverage area of the corrugated structure 32 larger than the coverage area of the hollow part 33.
  • the corrugated structure 32 plays a main role and the hollow part 33 plays an auxiliary role.
  • the connecting plate 31 is provided with through holes to form a hollow portion 33 .
  • the connecting plate 31 is provided with a through hole, the position of the through hole is equivalent to hollowing out the connecting plate 31 to reduce the overall structural strength of the connecting plate 31 and facilitate the deformation of the connecting plate 31 .
  • the number of through holes may be one or more, and the plurality of through holes may be radially arranged around the drive rod assembly 200 .
  • the through holes may be specifically elongated hole structures, and in this case, there are holes along the diameter of the drive rod assembly 200 . direction, the length of the through hole is less than or equal to the distance between the supporting part 2 and the carrying part 1.
  • the corrugated structure 32 and the hollow portion 33 are arranged around the support portion 2 along the circumferential direction of the first direction.
  • the noise generated by the driving rod assembly 200 impacting the supporting part 2 is divided into two parts, and one part of the noise is transmitted to the bearing part through the corrugated structure 32 of the connecting plate 31 1.
  • the other part of the noise blocks the propagation path due to the hollow part 33. Since the radial distance of the corrugated structure 32 and the hollow part 33 relative to the driving rod assembly 200 is approximately the same, there is no sequence between the corrugated structure 32 and the hollow structure. They both play a role at the same time.
  • the function of reducing noise transmission is to achieve the purpose of reducing noise under the joint action of these two parts.
  • the noise reduction gasket 100 is provided with a notch 5 along the radial direction of the drive rod assembly 200 .
  • the noise reduction gasket 100 is provided with a notch 5.
  • the noise reduction gasket 100 is not limited to the closed structure of the peripheral wall.
  • the notch 5 also has a hollowing effect to a certain extent.
  • the notch 5 blocks the propagation path of noise and plays a role in suppressing the transmission of noise.
  • the parts of the noise reduction gasket 100 located on both sides of the notch 5 can be closer to or farther away from each other.
  • the notch 5 provides a moving space for the two parts to move relative to each other, further increasing the overall deformation of the noise reduction gasket 100 .
  • the shape of the notch 5 is not specifically limited.
  • the cross section of the notch 5 is any one of a C-shape, a U-shape, and a V-shape.
  • the projection of the notch 5 on the plane where the bearing part 1 is located is any one of C-shape, U-shape or V-shape
  • the cross-section passing through the notch 5 is any one of C-shape, U-shape or V-shape.
  • the notch 5 is an opening structure, which is equivalent to opening a notch on the edge of the noise reduction gasket 100.
  • the notch directly penetrates the bearing part 1, the supporting part 2 and the flexible deformation part 3. The processing is simple and the deformation amount is relatively large.
  • the notch 5 is connected to the through hole 21.
  • the notch 5 is connected to the perforation 21, so that the perforation 21 is not limited to a closed hole structure. Under the communication function of the notch 5, the perforation 21 can also be an open structure.
  • the driving rod assembly 200 and the noise reduction gasket 100 are installed, the driving The rod assembly 200 can enter the through hole 21 through the open end of the notch 5 , or the parts of the noise reduction gasket 100 located on both sides of the notch 5 can be separated to facilitate the driving rod assembly 200 to be inserted into the through hole 21 .
  • the notch 5 is connected to the through hole 21, further increasing the overall deformation amount of the noise reduction gasket 100.
  • the projection of the support part 2 on the yoke plate 300 and the projection of the flexible deformation part 3 on the yoke plate 300 are arranged within the projection of the bearing part 1 on the yoke plate 300 (as shown in Figures 15-17 ); or, the bearing part 1 is on the yoke
  • the projection of the plate 300 and the projection of the flexible deformation part 3 on the yoke plate 300 are arranged within the projection of the support part 2 on the yoke plate 300 (as shown in Figures 18 to 20).
  • the gasket 100 forms a trumpet-shaped structure with "small top and big bottom", and the internal cavity of the trumpet-shaped structure forms at least part of the suspended portion 4 .
  • the trumpet-shaped structure has a small mouth end and a large mouth end. The large mouth end of the trumpet-shaped structure is set toward the yoke plate 300 , and the large mouth end of the trumpet-shaped structure is the open end. At this time, the support part 2 is protrudingly disposed relative to the bearing part 1.
  • the impact force received expands to a larger range and has a dispersion effect to achieve the purpose of noise reduction.
  • the gasket 100 forms a trumpet-shaped structure with "bigger at the top and smaller at the bottom", and the internal cavity of the trumpet-shaped structure forms at least part of the suspended portion 4 .
  • the trumpet-shaped structure has a small mouth end and a large mouth end. The small mouth end of the trumpet-shaped structure is set toward the yoke plate 300 , and the large mouth end of the trumpet-shaped structure is an open end. At this time, the bearing part 1 is recessed relative to the support part 2.
  • the support part 2 can receive the drive rod assembly 200 in a wider range. At the same time, it is equivalent to expanding the impact force received by the support part 2 to a larger range, thereby exerting a dispersion effect to achieve the purpose of noise reduction.
  • the diameter of the bearing part 1 or the distance between the edge of the bearing part 1 and the driving rod assembly 200 is relatively small, that is, the contact area between the bearing part 1 and the yoke iron plate 300 is relatively small, resulting in the transmission to the yoke iron plate 300 The noise is also relatively small.
  • the cross section of the support part 2 is any one of circular (as shown in Figures 18-20), square (as shown in Figures 21-32), and polygonal; and/or, the bearing part
  • the cross-section of 1 is any one of circle, square and polygon.
  • the cross-sectional shapes of the supporting part 2 and the carrying part 1 are not limited, and any one of circular, square, and polygonal shapes can be selected, as long as the two shapes match each other.
  • top surface of the part of the flexible deformation part 3 with the hollow part 33 and the top surface of the support part 2 may be coplanar, and the part of the flexible deformation part 3 without the hollow part 33 may be lower than the support part. 2 top surface.
  • the plurality of through holes can also be arranged along the long side direction of the yoke plate 300 , or along the short side direction of the yoke plate 300 , and the plurality of through holes are respectively provided.
  • the plurality of through holes may have an arc-shaped hole structure.
  • the central angles of the plurality of through holes relative to the drive rod assembly 200 may be the same or different. They may be oriented away from the drive rod assembly 200. The central angle of the hole relative to the drive rod assembly 200 gradually decreases.
  • the hollow part 33 and the corrugated structure 32 are spaced apart.
  • the hollow part 33 and the corrugated structure 32 are spaced apart. If the radial distance between the structure 32 and the hollow part 33 relative to the driving rod assembly 200 is different, the noise propagates in the corrugated structure 32 and the hollow structure in a sequence.
  • the noise generated by the impact of the driving rod assembly 200 on the support part 2 first passes through the hollow part 33 and then Then entering the corrugated structure 32, the hollow part 33 blocks the propagation path of the noise, which plays a first-level noise reduction role. Then the noise is transmitted to the bearing part 1 through the corrugated structure 32 of the connecting plate 31, which plays a second-level noise reduction role. , the two successively play the role of reducing noise transmission, and under the joint action of these two parts, the purpose of reducing noise is achieved.
  • An embodiment of the present invention also provides a relay, as shown in Figures 33 and 34.
  • the relay includes a static contact lead-out 400, a moving reed 500, a driving rod assembly 200, a yoke plate 300 and a driving rod assembly 200. It is attached to the yoke plate 300 and is configured to drive the moving reed 500 to move in a direction closer to or away from the stationary contact lead-out 400, so that the moving reed 500 selectively contacts and separates from the stationary contact lead-out 400.
  • the driving rod assembly 200 is passed through the yoke plate 300 and is configured to drive the moving reed 500 to move in a direction closer to or away from the static contact lead-out end 400, so that the moving reed 500 selectively contacts and contacts the static contact lead-out end 400. Separate, when the moving reed 500 comes into contact with the static contact at the bottom of the static contact lead-out end 400, the load is connected. If the static contact terminals 400 are a pair, current flows in from one static contact terminal 400 and flows out from the other static contact terminal 400 after passing through the moving reed 500 .
  • the driving rod assembly 200 drives the moving reed 500 to move in the first direction away from the static contact lead-out end 400. There may be a gap between the driving rod assembly 200 and the moving reed 500. There is a large impact between the yoke plates 300, resulting in a large noise.
  • the relay also includes a noise reduction gasket 100.
  • the noise reduction gasket 100 is provided on the drive rod assembly 200 and the yoke plate 300. between.
  • the noise reduction gasket 100 plays a role in isolating the drive rod assembly 200 and the yoke plate 300.
  • the drive rod assembly 200 is not directly connected to the yoke plate 300.
  • the yoke plate 300 is in direct contact with the noise reduction gasket 100 instead of the noise reduction gasket 100.
  • the noise reduction gasket 100 plays the role of buffering and noise reduction, thereby achieving the effect of reducing the generation of noise and inhibiting the spread of noise.
  • the bearing part 1 of the noise reduction gasket 100 is fixedly arranged relative to the yoke plate 300 (as shown in FIGS. 33 and 34 ); or, the support part 2 of the noise reduction gasket 100 is fixedly arranged relative to the drive rod assembly. 200 is fixedly arranged (as shown in Figures 35 and 36); or, it is movable between the bearing part 1 of the noise reduction gasket 100 and the yoke plate 300, between the support part 2 of the noise reduction gasket 100 and the driving rod assembly 200. event settings.
  • the bearing portion 1 of the noise reduction gasket 100 is fixedly arranged relative to the yoke plate 300, that is, the noise reduction gasket 100 and the yoke iron plate 300 are rigidly connected or fixedly arranged to ensure noise reduction.
  • the positional stability of the gasket 100 avoids the position deviation of the noise reduction gasket 100; and the support part 2 of the noise reduction gasket 100 is movable relative to the drive rod assembly 200, that is, the noise reduction gasket 100 and the drive rod assembly
  • There is no relative locking between the drive rod assembly 200 and the drive rod assembly 200 can move relative to the noise reduction gasket 100 to avoid interference with the movement of the drive rod assembly 200 .
  • the support portion 2 of the noise reduction gasket 100 is fixedly arranged relative to the drive rod assembly 200 , that is, the noise reduction gasket 100 and the drive rod assembly 200 are rigidly connected or fixedly arranged, thereby reducing noise.
  • the bearing part 1 of the gasket 100 is movable relative to the yoke plate 300, that is, there is no relative locking between the noise reduction gasket 100 and the yoke plate 300, and the noise reduction
  • the gasket 100 moves with the movement of the driving rod assembly 200 to ensure the positional stability of the noise reduction gasket 100.
  • the driving rod assembly 200 reduces the impact on the yoke iron plate 300 through the impact of the noise reduction gasket 100 on the yoke iron plate 300. noise.
  • the noise reduction gasket 100 is movable between the bearing part 1 and the yoke plate 300 , and the noise reduction gasket 100 is movable between the support part 2 and the driving rod assembly 200 , that is, the noise reduction gasket 100 and the yoke plate 300 There is no relative locking between the noise reduction gasket 100 and the drive rod assembly 200.
  • the drive rod assembly 200 can move relative to the noise reduction gasket 100 to avoid interference with the movement of the drive rod assembly 200 and reduce noise.
  • the gasket 100 moves with the movement of the driving rod assembly 200, and the noise reduction gasket 100 plays a following role.
  • the driving rod assembly 200 impacts the noise reduction gasket 100, and through the buffering and noise reduction of the noise reduction gasket 100, the noise reduction is reduced.
  • the impact on the yoke iron plate 300 is thereby reduced, thereby reducing the impact noise on the yoke iron plate 300 .
  • the yoke plate 300 is provided with an accommodating groove 302.
  • the accommodating groove 302 is used to accommodate at least part of the noise reduction gasket 100.
  • the accommodating groove 302 is a noise reduction gasket. While 100 provides accommodating space, the side walls of the accommodating groove 302 also play a role in limiting the position of the noise reduction gasket 100 .
  • the inner wall of the accommodating groove 302 and the noise reduction gasket 100 can be separated and contacted, and can also be connected by brazing, laser welding, resistance welding, etc.
  • one of the bearing part 1 of the noise reduction gasket 100 and the yoke plate 300 is provided with a positioning post 301, and the other is provided with a positioning hole 101 corresponding to the positioning post 301.
  • the positioning post 301 is passed through the positioning hole 101 .
  • the positioning post 301 is inserted through the positioning hole 101 to play the role of initial positioning between the noise reduction gasket 100 and the yoke plate 300, ensuring the accuracy of the relative position between the noise reduction gasket 100 and the yoke plate 300. If a rigid connection is required between the noise reduction gasket 100 and the yoke plate 300, the positioning posts 301 can be used as rivets, and the rivets penetrate the positioning holes 101 to achieve a fixed connection between the noise reduction gasket 100 and the yoke plate 300; if There is no need for a rigid connection between the noise reduction gasket 100 and the yoke plate 300. When the noise reduction gasket 100 moves with the drive rod assembly 200, the positioning post 301 acts as a guide to prevent the noise reduction gasket 100 from appearing during the movement. Large position offset.
  • the size of the positioning hole 101 is larger than the size of the positioning post 301. If the noise reduction gasket 100 rotates with the drive rod assembly 200, the positioning hole 101 can provide space for the positioning post 301 to move. This prevents the positioning post 301 from being stuck due to the positioning hole 101 limiting the positioning post 301 .
  • the driving rod assembly 200 includes a push rod 201, a first elastic member 202, a connecting bracket 203 and a mounting base 204 (as shown in Figures 33-34).
  • the top of the push rod 201 is fixed to the mounting base 204.
  • the mounting base 204 is used to install the spring.
  • the connecting bracket 203 has a U-shaped structure.
  • the opening of the connecting bracket 203 is set toward the mounting base 204.
  • the lower end of the connecting bracket 203 is connected to the mounting base 204.
  • the inner wall of the upper end of the connecting bracket 203 is connected to the moving spring 500.
  • the connecting bracket 203 functions as the limiting moving spring 500 .
  • the first elastic member 202 is specifically a spring.
  • Both ends of the first elastic member 202 are respectively in contact with the mounting base 204 and the moving reed 500.
  • the first elastic member 202 plays an elastic and reset role to prevent the moving reed 500 from contacting the static contact. A rigid collision occurs between point lead points.
  • the push rod 201 and the mounting base 204 are an integrally formed structure, which is realized by an integral injection molding process, thereby reducing parts assembly links and reducing production costs.
  • the relay also includes an insulating cover (not shown in the figure).
  • the insulating cover is arranged on the yoke plate 300.
  • the static contact lead-out 400 is installed in the insulating cover and at least partially extends into the insulating cover.
  • the insulating cover provides a fixed position for the stationary contact lead-out 400.
  • the driving rod assembly 200 is at least partially disposed in the insulating cover.
  • the insulating cover provides an insulating environment for the stationary contact outlet 400, the moving reed 500 and the driving rod assembly 200.
  • the relay further includes an electromagnet unit 600 (not shown in the figure).
  • the electromagnet unit 600 includes a coil frame, a coil, a static iron core, and a moving iron core.
  • the coil frame is in the shape of a hollow cylinder and is made of insulating material, and the coils surround the coil frame.
  • the static iron core is fixedly arranged in the center hole of the coil frame.
  • the static iron core and the moving iron core are arranged oppositely.
  • the moving iron core is movably arranged.
  • the moving iron core is connected to the driving rod assembly 200 for being driven by the static iron when the coil is energized. Core attraction.
  • the moving iron core and the driving rod assembly 200 can be connected by screwing, riveting, welding or other methods.
  • a second elastic member is also provided between the moving iron core and the push rod 201. The second elastic member is sleeved on the outside of the push rod 201 and plays the role of elastic reset.
  • the relay is in a fully closed state before being disconnected.
  • the first elastic member 202 is compressed over travel to provide contact pressure, and the second elastic member spring is also compressed to provide contact breaking force.
  • both elastic parts are compressed and elastic potential energy is stored. If the relay receives a power-off command, the stored elastic potential energy will be converted into kinetic energy of the entire drive rod assembly 200, thereby achieving separation between the static contact lead-out end 400 and the moving reed 500 in the relay.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Fluid-Damping Devices (AREA)

Abstract

La présente invention se rapporte au domaine technique de l'énergie électrique, et concerne un joint de réduction de bruit et un relais. Le joint de réduction de bruit est situé entre un ensemble tige d'entraînement (200) et une plaque de culasse (300) ; le joint de réduction de bruit comprend une partie de palier (1), une partie de support (2) et une partie de déformation flexible (3) ; la partie de palier (1) est disposée sur la plaque de culasse (300) ; la partie de support (2) est reliée à la partie de palier (1) ; l'ensemble tige d'entraînement (200) est conçu pour passer à travers la partie de support (2) le long d'une première direction et venir sélectivement en butée contre la partie de support (2) ; la partie de déformation flexible (3) est disposée entre la partie de palier (1) et la partie de support (2), et est utilisée pour un amortissement entre la partie de support (2) et la partie de palier (1) et une réduction de bruit, le joint de réduction de bruit étant au moins partiellement constitué d'un matériau rigide. Le joint de réduction de bruit est au moins partiellement constitué d'un matériau rigide, de telle sorte que le joint de réduction de bruit a une résistance élevée, n'est pas sujet à une grande déformation, a une bonne résistance à la fatigue et a une longue durée de vie.
PCT/CN2023/096650 2022-06-21 2023-05-26 Joint de réduction de bruit et relais WO2023246428A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202210707285.7A CN117316714A (zh) 2022-06-21 2022-06-21 一种降噪垫片及继电器
CN202210707285.7 2022-06-21

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WO2023246428A1 true WO2023246428A1 (fr) 2023-12-28
WO2023246428A9 WO2023246428A9 (fr) 2024-03-14

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007287525A (ja) * 2006-04-18 2007-11-01 Matsushita Electric Works Ltd 電磁開閉装置
CN106024527A (zh) * 2016-06-20 2016-10-12 厦门宏发电力电器有限公司 一种消音碗及其降噪型继电器
CN114614617A (zh) * 2022-01-21 2022-06-10 深圳汝原科技有限公司 安装件和电器设备
CN218039035U (zh) * 2022-06-21 2022-12-13 厦门宏发电力电器有限公司 一种继电器

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007287525A (ja) * 2006-04-18 2007-11-01 Matsushita Electric Works Ltd 電磁開閉装置
CN106024527A (zh) * 2016-06-20 2016-10-12 厦门宏发电力电器有限公司 一种消音碗及其降噪型继电器
CN114614617A (zh) * 2022-01-21 2022-06-10 深圳汝原科技有限公司 安装件和电器设备
CN218039035U (zh) * 2022-06-21 2022-12-13 厦门宏发电力电器有限公司 一种继电器

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CN117316714A (zh) 2023-12-29
WO2023246428A9 (fr) 2024-03-14

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